def decode(self):
msg.decode(self)
self._register_options()
self['options'] = {}
while self.offset < len(self.buf):
code = struct.unpack('B', self.buf[self.offset:self.offset + 1])[0]
if code == 0:
self.offset += 1
continue
if code == 255:
return self
# code is unknown -- bypass it
if code not in self._decode_map:
length = struct.unpack(
'B', self.buf[self.offset + 1:self.offset + 2])[0]
self.offset += length + 2
continue
# code is known, work on it
option_class = getattr(self, self._decode_map[code]['format'])
option = option_class(buf=self.buf, offset=self.offset)
option.decode()
self.offset += option.length
if option.value is not None:
value = option.value
else:
value = option
self['options'][self._decode_map[code]['name']] = value
return self
def decode(self):
self.data_length = struct.unpack(
'B', self.buf[self.offset + 1:self.offset + 2])[0]
if self.policy is not None:
if self.policy['format'] == 'string':
fmt = '%is' % self.data_length
else:
fmt = self.policy['format']
value = struct.unpack(
fmt,
self.buf[self.offset + 2:self.offset + 2 + self.data_length])
if len(value) == 1:
value = value[0]
value = self.policy.get('decode', lambda x: x)(value)
if isinstance(value, basestring) and \
self.policy['format'] == 'string':
value = value[:value.find('\x00')]
self.value = value
else:
# remember current offset as msg.decode() will advance it
offset = self.offset
# move past the code and option length bytes so that msg.decode()
# starts parsing at the right location
self.offset += 2
msg.decode(self)
# restore offset so that dhcpmsg.decode() advances it correctly
self.offset = offset
return self
def decode(self):
msg.decode(self)
self._register_options()
self['options'] = {}
while self.offset < len(self.buf):
code = struct.unpack('B', self.buf[self.offset:self.offset + 1])[0]
if code == 0:
self.offset += 1
continue
if code == 255:
return self
# code is unknown -- bypass it
if code not in self._decode_map:
length = struct.unpack('B', self.buf[self.offset + 1:
self.offset + 2])[0]
self.offset += length + 2
continue
# code is known, work on it
option_class = getattr(self, self._decode_map[code]['format'])
option = option_class(buf=self.buf, offset=self.offset)
option.decode()
self.offset += option.length
if option.value is not None:
value = option.value
else:
value = option
self['options'][self._decode_map[code]['name']] = value
return self
def decode(self):
self.data_length = struct.unpack('B', self.buf[self.offset + 1:
self.offset + 2])[0]
if self.policy is not None:
if self.policy['format'] == 'string':
fmt = '%is' % self.data_length
else:
fmt = self.policy['format']
value = struct.unpack(fmt, self.buf[self.offset + 2:
self.offset + 2 +
self.data_length])
if len(value) == 1:
value = value[0]
value = self.policy.get('decode', lambda x: x)(value)
if isinstance(value, basestring) and \
self.policy['format'] == 'string':
value = value[:value.find('\x00')]
self.value = value
else:
# remember current offset as msg.decode() will advance it
offset = self.offset
# move past the code and option length bytes so that msg.decode()
# starts parsing at the right location
self.offset += 2
msg.decode(self)
# restore offset so that dhcpmsg.decode() advances it correctly
self.offset = offset
return self
def decode(self):
if self.policy is not None:
self.data_length = struct.unpack('B', self.buf[self.offset + 1:
self.offset + 2])[0]
if self.policy['fmt'] == 'string':
fmt = '%is' % self.data_length
else:
fmt = self.policy['fmt']
value = struct.unpack(fmt, self.buf[self.offset + 2:
self.offset + 2 +
self.data_length])
if len(value) == 1:
value = value[0]
value = self.policy.get('decode', lambda x: x)(value)
if isinstance(value, basestring) and \
self.policy['fmt'] == 'string':
value = value[:value.find('\x00')]
self.value = value
else:
msg.decode(self)
return self
def decode(self):
if self.policy is not None:
self.data_length = struct.unpack(
'B', self.buf[self.offset + 1:self.offset + 2])[0]
if self.policy['fmt'] == 'string':
fmt = '%is' % self.data_length
else:
fmt = self.policy['fmt']
value = struct.unpack(
fmt,
self.buf[self.offset + 2:self.offset + 2 + self.data_length])
if len(value) == 1:
value = value[0]
value = self.policy.get('decode', lambda x: x)(value)
if isinstance(value, basestring) and \
self.policy['fmt'] == 'string':
value = value[:value.find('\x00')]
self.value = value
else:
msg.decode(self)
return self
